Rotary fluid pump



March 16, 1954 s B|LSKY ROTARY FLUID PUMP Filed Aug. 28, 1950 Samuel Blg INVENTOR BY ATroRNEY 11 pan-ying:- drawings-,z whereim' l Patented Mar. 16 1954 UNI TED STATES: PATENT OFFICE ROTARY FLUID PUMP SamuelfBilsky, Flint, Mich.

Application August'ZS, 1950,. Serial N o. 181,899

6 Claims.

The present invention relatesto uid chambers withV rotatable sections, and aims to. provide a novel and improved mechanism of this character wherein an annular chamber, composed of recessed ring sections` with connecting bearing surfaces therebetween andwith a uid inlet in one section and av fluid outlet in another adapted for attachment to machinery in a manner to cause one section to be rotated While another remains stationary, rotates,n at a different, rate of speed, or rotates in an opposite direction.

Another object of the inventionis to provide a fluid chamber of annular formation for use with machinery requiringv the, extending4 of a, part of the machinery therethrough and thev conveying of fluid to moving parts ofthe machinery.

Another object of the invention isto provide a uid chamber in accordance with-the preceding objects, wherein a stationary section has a iiuid supply opening` therein, While a rotary section has a plurality of iiuidk outlet openings and a series of angularly arranged' vanes fixed therein for forcing the Huid', in the chamber throughAsai-d cutlet openings.

A further object of, the invention is theprovision of an annularchamber'composed' ofi a pair of annularly recessed ring-sections, eachV consisting ofA concentric inner andy outer-cylindricalwalls and a flatfside wall, said cylindrical inner: and outer wallsof one section being rotatably.- connected to the cylindrical inner`v and'jouter walls. respectively, of the-other-` Section, while the two iiat side walls of both, sections; constitute.y end wallsy fork the annular chamber:`

A still further object of the invention is,4 to provide a fluid chamberas Outlined,` in thepreceding object, wherein thereis `a fiuidvinlet opening at the outer cylindrical wall o f one section and a plurality of uid outlet yopenings through the at side wall off the other section,r said' iiui'd outlet openingsVbeingprovi'ded' in bolts that-extend through radially.arrangedopeningsin the side wall for attaching the section-'to thepart or parts into which the fluidpasses.

Itisvalso an objectofv the inventionto provide afluid chamber of the above-indicated char-rv acter, which isA simple andsubstantial in construction, economical to manufacture, and thoroughly efficient4 and practical in use.

These, togetherl withl various auxiliaryffeatures and objects of the invention which will laterbe come apparent as the following description pro- Figure 1 is a side elevation of the improved fluid chamber with parts broken away and shown in section;

Figure 2 is an elevation andV sectional view at right angles to that shown inV Figure l.;

Figure 3 is a section taken substantially` on line 3-3 of Figure 1;,

Figure 4 is a vertical cross section through a Slightly modified form of the invention showing the chamber used to lubricate a fiywheel bearing on a rotating shaft; and' Figure 5 is a fragmentary sectionaly View of parts shown in Figure 4but showing an additional modification.

Referring now more specifically.' to the accompanying drawings, wherein like numerals designate similar parts throughout, the various views, attention is directed rst to Figures 1,l 2,` and 3. wherein it will be seen that there is,r indicated by the numeral IU' an annular chamber which is composed of'a normally stationary section II anda normally rotatable sectionl I 2'. While the sections I I and I21wil1`, bey referred tov throughout the description as stationary `and rotatable,4 respectivel'y, for clarification, it` is to be understood that rotary movement at different rates of speed or in opposite directions.` may be imparted to both of said" sections..

Thesections II and II are connected'together side:v by side and, are, both of' ring-shaped formation with annular recesses extending, inwardly from. adjacent, sides thereof", and opening into one another to, provide a closed, annular fluidcontaining. compartment` which produces sections, each with an inner and anrouter cylindrical, wall and a flat. side wall. The inner and outer cylindrical walls and'atsi'de wall ofthe stationary section Il I are designated by the numerals. I3., I4, and` I 5,11espectively whilesimilar walls` of therotatable section` I2 aret indicated bythe numerals I-I I I,an'd IBL' At the locationsv where the cylindrical' Walls I3` and. I4' of. the, section I'I" are connected'. to the.v cylindrical wallsv I6f. and' ILT;, respectively, of the section..I12 the ,inner cylindrical walls ,o I 3" and I.Ii are provided with abut'ti'ng'.l inwardly directed annular flanges I9" andfmjwhile the outer cylindrical walls IA and. IT have outwardlyY directed ceeds, are attained by thepresent invention, prefer-redv embodimentsof which have= been illustrated, byY way-'lof examples l only;v the :accomabutting annular flanges ZI' and 22; The'fian'ges 20`and 22`on the'sect'ion' I2'are ofgreater-widths and thicknesses' than the anges'- I9# and 2*-IY of the section II; are-recessed-` annularlwto receive the c anges #9i and 2fI and'haveattachedthereto bylbolts- 23 andt'll,v rings v:2li-v-vv and; 1 216vthat; engage over the flanges I9 and 2I fonretainingzsamei in inizia recenti-:si:cuir-theek i for rotatably connecting the sections together. For

supporting the two sections II and I2 in true concentric relationship during rotary movement, bearing surfaces 21 and 28 are provided by extensions 29 and 30 on the Walls I6 and I1 of section I2 projecting into annular cutouts in the walls I3 and I4 of the section II.

In the outer cylindrical wall I4 of the stationary section II is an opening 3l into which is threaded a pipe connection 32 for a fluid supply line. While only one inlet opening is shown, it is to be understood that there may be any number of same. Also on the stationary section II, and attached to the flat wall I thereof by bolts 33, is a bracket 34 with outwardly and forwardly directed perforated arms 35 adapted for attachment to a stationary part of the machinery.

To provide fluid outlet openings and a means of attaching the rotatable section I2 to a rotating part of the machine to which fluid is to be supplied, a plurality of tubular bolts 36 are extended through spaced holes 31 in the flat side wall I8 of the section I2 for engagement with said Wall upon threading of said tubular bolts into the rotatable part ofthe machinery. The heads and threads of the tubular bolts attach the parts together, while the openings 38 through the bolts communicate the interior of the chamber With any desired source of fluid conveyance on the machinery.

Within the uid compartment and arranged at slight angles are perforated vanes 39 fixed to both cylindrical walls I6 and I1 and side wall I8 of the rotatable section I2 and projecting into the section II. The vanes 39 are spaced apart and are staggered with respect to the fluid outlet openings for agitating the fluid in the chamber while forcing the same through the openings. The perforations in the vanes increase agitation of the fluid and provide for efllcient cooling of the fluid when contacting or exposing exterior wall surfaces of the chamber to colder elements than that of the temperature of the fluid in the chamber.

Reference is now made to Figure 4, which illustrates a slight modification of the invention, and shows the fluid chamber attached to and arranged for lubricating a flywheel bearing of a heavy press. Bearings of this type are difficult to lubricate with a piped lubrication system because the flywheel rotates on a rotatable shaft. For this reason, the bearings are almost'always oiled or greased by hand; this requires that operation of the press be ceased so that the oiler may safely climb up onto the top of the press to reach the flywheel oil or grease cups to supply the necessary lubricant. Illustrated is a portion of a press of this type showing a main frame 40 on which a bearing 4I is arranged for rotatably supporting the drive end of a crank shaft42. Exteriorly of the bearing 4I and rotatably mounted, as at 43, on the protruding drive end of the crank shaft 42 is a power-driven flywheel 44 which is rotated constantly during operation of the press, and' which rotates the crank shaft 42 to raise and lower the ram, not shown, upon engagement of the clutch 45. An unusual problem of lubrication is presented because the crank shaft 42 sometimes rotates with the flywheel 44' and at other times, the flywheel is rotated independent of and on the crank shaft, and it is for lubricating this type of bearing that the present invention is especially adapted.

. The only difference in this form of the invention over that previously described is that the inwardly directed flanges I9 and 20 on the stationary section II and rotatable section I2, respectively, ring 25, and perforated vanes 39 have been omitted. In lubricating parts of this kind where there is either pressure or gravity feed from the fluid chamber to a bearing or the like, vanes 39 are not used, and seals at the connections of the inner cylindrical walls I3 and IB are not required.

As can be seen, the stationary section II is secured to the frame 4I) of the press by bolting the legs 35 of the bracket 31 to said frame, while the rotatable section l2 is secured to a side of the flywheel 44 by the tubular bolts 36 which communicate with passageways 46 leading to the bearing surfaces 43.

Sometimes, ilywheels or any other element to which the rotatable sections I2 are to be attached have not had the attaching surface thereof finished off smoothly, or for some other reason they require that the rotatable section I2 be spaced therefrom, threaded bushings 41, such as illustrated in Figure 5, may be used to provide aligned local engagement at the attaching points. Also in Figure 5, spacing collars 48 are shown placed between the brackets 34 and the stationary section I I where the distance between parts to which the sections of the chamber are to be attached requires the use thereof.

In operation, the rotatable section I2, being securely attached to a rotatable member of the machine, is rotated therewith and relative to the stationary section I I and fluid entering the stationary section II by pipe line or by any other suitable manner of conveyance either flows by gravity or is forced, either by pressure from the pipe line or by movement of the varies, through the tubular bolts 36 and into the movable part of the machinery to which the section I2 is attached. The bearing surfaces and fluid sealing structures between moving parts of the rotatable section I2 and the stationary section I I prevent leakage at the rotatable connections of the sections, except in the case illustrated in Figure 4 where the container is used for gravity feed lubricating purposes and where a slight leakage of lubricant at the connection of the inner cylindrical walls I3 and I6 is not objectionable.

In view of the foregoing description taken in conjunction with the accompanying drawings, it is believed that a clear understanding of the construction, operation, and advantages of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described preferred embodiments of the invention, various changes may be made without departing from the spirit and full intendment of the invention.

What is claimed is:

l. A fluid chamber forming member composed of a stationary ring section and a rotatable ring section arranged end to end in axial engagement with one another and with annular recesses in both sections concentric to and opening into one another; each of said sections comprising an inner cylindrical wall, an outer cylindrical wall, and a fiat side wall; said stationary section having a fluid inlet opening to the annular recess therein; said rotatable section having a series of fluid outlets through the ilat side Wall thereof; and members connectingl saidl sections together for movement of the rotatable section with respect to the stationary section. y

2. A iluid chamber forming member composed of a stationary ring section and a rotatable ring section arranged end to end in axial engagement with one another and with annular recesses in both sections concentric to and opening into one another; each of said sections comprising an inner cylindrical wall; an outer cylindrical Wall, and a ilat side wall; said stationary section having a iluid inlet opening to the annular recess therein; said rotatable section having a series of openings through its ilat side Wall; attaching bolts in the openings in the flat side Wall of the rotatable section; said bolts having uid outlet openings therethrough communicating with the annular recess of said rotatable section; and members connecting said sections together for movement of the rotatable section with respect to the stationary section.

3. A luid chamber forming member composed of a stationary ring section and a rotatable ring section arranged axially end to end and with annular recesses in both sections concentric to and opening into one another; each of said sections comprising an inner cylindrical Wall, an outer cylindrical Wall, and a flat side Wall; said stationary section having a uid inlet opening to the annular recess; said rotatable section having a series of fluid outlets through the flat side wall thereof; said inner and outer cylindrical walls of both sections having bearing surfaces thereon in engagement with one another; and members connecting said sections together for movement of the rotatable section'with respect to the stationary section.

4. A :fluid chamber forming member composed of a stationary ring section and a rotatable ring section arranged axially end to end and with annular recesses in both sections concentric to and opening into one another; each of said sections comprising an inner cylindrical wall, an outer cylindrical wall, and a flat side wall; said stationary section having a fluid inlet opening to the annular recess; said rotatable section having a series of fluid outlets through the at side wall thereof; a plurality of vanes in the annular recesses of both sections and'fixed to the inner and outer cylindrical walls and flat side wall of the rotatable section and each extending in a plane angularly disposed with respect to the plane of 6 said flat side wall to which it is fixed; and members connecting said sections together for movement of the rotatable section with respect to the stationary section.

5. A fluid chamber forming member composed of a stationary ring section and a rotatable ring section arranged axially end to end and with annular recesses in both sections concentric to and opening into one another; each of said sections comprising an inner cylindrical Wall, an outer cylindrical wall, and a flat side Wall; said stationary section having a iluid inlet opening to the annular recess; said rotatable section havingua series of fluid outlets through the ilat side wall thereof; a plurality of perforated vanes in the annular recesses of both sections and xed to the inner and outer cylindrical walls and llat side Wall of the rotatable section and each extending in a plane angularly disposed with respect to the plane of said flat side wall to which it is fixed; and members connecting said sections together for movement of the rotatable section with respect to the stationary section.

6. A iluid chamber forming member comprising a pair of ring sections arranged end to end in axial engagement and concentric to one another, one of said ring sections having an annular recess therein and a iluid inlet opening to said recess, a plurality of spaced vanes fixed to the other of said ring sections and extending into the annular' recess of the first-mentioned ring section, said vanes extending in planes each annularly disposed with respect to the radial plane of the ring section to which it is affixed, said section with said vanes having nuid outlet openings therein, both of said ring sections having bearing surfaces thereon engaging one another at adjacent sides of said sections, and members connecting the sections together in a manner to permit rotation of one section with respect to the other.

SAMUEL BILSKY.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date Re. 19,101 Burks Mar. 6, 1934 948,213 DeFerranti Feb. 1, 1910 2,396,319 Edwards et al Mar. 12, 1946 2,557,140 Razdowitz June 19, 1951 

